Android backend: allow targets to have unmangled names.

pylib/gyp/generator/android.py

Index: pylib/gyp/generator/android.py
===================================================================
--- pylib/gyp/generator/android.py	(revision 1519)
+++ pylib/gyp/generator/android.py	(working copy)
@@ -45,6 +45,15 @@
 generator_supports_multiple_toolsets = True
 
 
+# Generator-specific gyp specs.
+generator_additional_non_configuration_keys = [
+    # Boolean to declare that this target does not want its name mangled.
+    'android_unmangled_name',
+]
+generator_additional_path_sections = []
+generator_extra_sources_for_rules = []
+
+
 SHARED_FOOTER = """\
 # "gyp_all_modules" is a concatenation of the "gyp_all_modules" targets from
 # all the included sub-makefiles. This is just here to clarify.
@@ -577,6 +586,10 @@
     distinguish gyp-generated module names.
     """
 
+    if int(spec.get('android_unmangled_name', 0)):
+      assert self.type != 'shared_library' or self.target.startswith('lib')
+      return self.target
+
     if self.type == 'shared_library':
       # For reasons of convention, the Android build system requires that all
       # shared library modules are named 'libfoo' when generating -l flags.
@@ -839,10 +852,11 @@
     # Add an alias from the gyp target name to the Android module name. This
     # simplifies manual builds of the target, and is required by the test
     # framework.
-    self.WriteLn('# Alias gyp target name.')
-    self.WriteLn('.PHONY: %s' % self.target)
-    self.WriteLn('%s: %s' % (self.target, self.android_module))
-    self.WriteLn('')
+    if self.target != self.android_module:
+      self.WriteLn('# Alias gyp target name.')
+      self.WriteLn('.PHONY: %s' % self.target)
+      self.WriteLn('%s: %s' % (self.target, self.android_module))
+      self.WriteLn('')
 
     # Add the command to trigger build of the target type depending
     # on the toolset. Ex: BUILD_STATIC_LIBRARY vs. BUILD_HOST_STATIC_LIBRARY